Update Methods

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MongoDB provides the following methods for updating documents in a collection:

`db.collection.updateOne()`	Updates at most a single document that match a specified filter even though multiple documents may match the specified filter. New in version 3.2.
`db.collection.updateMany()`	Update all documents that match a specified filter. New in version 3.2.
`db.collection.replaceOne()`	Replaces at most a single document that match a specified filter even though multiple documents may match the specified filter. New in version 3.2.
`db.collection.update()`	Either updates or replaces a single document that match a specified filter or updates all documents that match a specified filter. By default, the `db.collection.update()` method updates a single document. To update multiple documents, use the multi option.

Additional Methods

The following methods can also update documents from a collection:

See the individual reference pages for the methods for more information and examples.

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Updates with Aggregation Pipeline

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